🛡️ Sentinel: Fix Information Exposure in Upload API Error Handling#116
🛡️ Sentinel: Fix Information Exposure in Upload API Error Handling#116GerryK97 wants to merge 1 commit into
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- Updated `src/app/api/upload/route.ts` to prevent exposure of internal environment variable requirements and detailed Cloudinary error stack traces to clients. - Implemented generic, secure user-facing error messages while retaining detailed server-side logs for debugging. - Added a `.jules/sentinel.md` journal entry detailing this critical learning regarding safe error handling to avoid leaking server architecture. Co-authored-by: GerryK97 <210032986+GerryK97@users.noreply.github.com>
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🛡️ Sentinel Security Patch
🚨 Severity: MEDIUM
💡 Vulnerability
The
POST /api/uploadendpoint exhibited an Information Exposure (CWE-209) vulnerability. When missing Cloudinary environment variables or when Cloudinary returned an error, the endpoint returned specific configuration instructions and detailed third-party API error details (including stack traces or Cloudinary messages) directly to the client in the JSON response payload. This inadvertently leaked server architecture and third-party dependency configurations to potential attackers.🎯 Impact
By reading specific error responses, attackers could map the server's backend integrations (e.g., verifying it relies on Cloudinary, learning specific environment variable names like
CLOUDINARY_API_SECRET, and obtaining raw third-party service responses) which assists in staging targeted attacks against the infrastructure.🔧 Fix
"Upload service unavailable. Please contact administrator."error instead of specifying missing environment variables.console.errorbut return a sanitized"Failed to upload image. Please try again later."error to the client instead of passing through the detailederrorDetailsobject.✅ Verification
500error structures without internal implementation details..jules/sentinel.md.PR created automatically by Jules for task 11280789979560322647 started by @GerryK97